Mitsubishi Electric FX5-DP-M, Руководство пользователя

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10 TROUBLESHOOTING
10.1 Checking with LED
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10
TROUBLESHOOTING
This chapter describes troubleshooting of the FX5-DP-M.
10.1
Checking with LED
This section describes troubleshooting using the LED.
Error status can be determined by the status of the RUN LED and the ERROR LED.
*1 When multiple errors occur, the error status is displayed in the order of major, moderate, and minor.
When the RUN LED turns off
When the RUN LED turns off after the FX5-DP-M is powered on, check the following.
When the ERROR LED turns on
When the ERROR LED turns on, check the following item.
When the BF LED turns on
When the BF LED turns on, check the following.
When the DIA LED turns on
When the DIA LED turns on, check the following.
RUN LED ERROR LED Error status
*1
Description
Off On, flashing Major error An error such as hardware failure or memory failure. The module stops operating.
On Flashing Moderate error An error, such as parameter error, which affects module operation. The module stops operating.
On On Minor error An error where the module continues operating.
Check item Action
Does the error continue after powering off and on? A hardware failure may have occurred. Replace the module.
Check item Action
Has the same number been set to the DP-Master
and DP-Slave? Modify the parameter.
Has any error occurred at the parameter of the
flash ROM? Rewrite the parameter. If the error recurs, please consult your local Mitsubishi representative.
Has any error other than the above occurred? Please consult your local Mitsubishi representative.
Check item Action
Has any communications error occurred? Check 'Diagnostic information area' (Un\G23072 to Un\G23199) and 'Local station error information area'
(Un\G23071) for the error cause and follow the instruction.
Check item Action
Is any alarm or extended diagnostic information
generated at the target DP-Slave? • Check b11 in 'Diagnostic information area' (Un\G23072 to Un\G23199). When the area is turned on,
acquire extended diagnostic information from DP-Slave and take the action. When extended diagnostic
is cleared, turn on 'Diagnostic information area clear request signal' (Un\G2.b2). Then DIA. LED is
turned off.
• Check 'Slave status area (Alarm detection)' (Un\G26416 to Un\G26420). If an alarm has been
generated, acquire the alarm by 'Alarm read request' (Un\G3.b8) and take action according to the
details.